Call the water quality experts at Eastern Drill to improve your home's water supply. What’s in your drinking water? Each day you and your family drink, bathe, and prepare food using water. In Andover and other towns in northeastern CT, you may have a private well on your property. We believe that having your water tested regularly for safety and purity is always a good idea. There is more to water quality than appearance and taste. The only reliable method of knowing what your municipal wat